Probing the Physics of the Hierarchy Problem

探究层次问题的物理原理

• 批准号: 0355066
• 负责人: Christopher Kolda
• 金额: $ 10.5万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-11-01 至 2008-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0355066&HistoricalAwards=false
• 关键词: Probing; Physics; Hierarchy; Problem

This proposal focuses on two important areas -- the collider phenomenology of beyond the standard model particle physics and the cosmological mystery of dark energy Present day physics is faced with at least two fine tuning problems. The first has to do with why the scale of masses is the Electro Weak scale and not the Planck scale. The second has to do with why at this period of time the Universe has just started to accelerate, after a period of deceleration. It might be hoped that the source of these two hierarchy problems might be a result of the same underlying physics. However, at present the approach to these two problems must necessarily be different. For the first problem we propose to look at non-canonical signatures in the Higgs boson sector, including flavor changing signatures and CP violation. In the latter problem models of dark energy will be built starting from the underlying ultraviolet physics, and then their cosmological implications will be studied.

这一提议聚焦于两个重要领域--超越标准模型粒子物理的对撞机现象学和暗能量的宇宙学之谜。目前，物理学面临着至少两个微调问题。第一个问题是，为什么质量的尺度是电弱尺度，而不是普朗克尺度。第二个问题与为什么宇宙在经历了一段时间的减速后才刚刚开始加速有关。人们可能希望，这两个层级问题的来源可能是相同的潜在物理结果。然而，目前处理这两个问题的方法必然不同。对于第一个问题，我们建议研究希格斯玻色子部门的非正则签名，包括味道变化签名和CP破坏。在后一个问题中，将从基本的紫外线物理出发建立暗能量模型，然后研究它们的宇宙学含义。